The php_pgsql_meta_data function in pgsql.c in the PostgreSQL (aka pgsql) extension in PHP before 5.4.42, 5.5.x before 5.5.26, and 5.6.x before 5.6.10 does not validate token extraction for table names, which might allow remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted name. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1352.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2015-4644 from the MITRE CVE dictionary dictionary and NIST NVD.
Red Hat Product Security has rated this issue as having Low security impact. This issue is not planned to be corrected in future updates for php packages in Red Hat Enterprise Linux 6 and 7, and php53 packages in Red Hat Enterprise Linux 5. The php packages in Red Hat Enterprise Linux 5 were not affected by this issue.
| Base Score | 2.6 |
|---|---|
| Base Metrics | AV:N/AC:H/Au:N/C:N/I:N/A:P |
| Access Vector | Network |
| Access Complexity | High |
| Authentication | None |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | Partial |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Software Collections for Red Hat Enterprise Linux 7 (rh-php56-php) | RHSA-2015:1187 | 2015-06-25 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 (php55-php) | RHSA-2015:1186 | 2015-06-25 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 (php54-php) | RHSA-2015:1219 | 2015-07-09 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 (php54-php) | RHSA-2015:1219 | 2015-07-09 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 (php55-php) | RHSA-2015:1186 | 2015-06-25 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 (rh-php56-php) | RHSA-2015:1187 | 2015-06-25 |
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 7 | php | Will not fix |
| Red Hat Enterprise Linux 6 | php | Will not fix |
| Red Hat Enterprise Linux 5 | php | Not affected |
| Red Hat Enterprise Linux 5 | php53 | Will not fix |
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